Consider the following statements:
Statement-I: India’s solar mission Aditya-L1 has been placed in halo orbit around Sun-Earth Lagrange point 1.
Statement-II: The two points - L4, and L3 are dynamically unstable and lie on the line through the centres of the two large bodies.
Statement III: Multiple missions cannot be placed at the same Lagrange point, such as L1.
Which one of the following is correct in respect of the above statements?